Pincode ReportIndia · beta

801109 — Karai, Patna, Bihar

Post offices in this pincode

  • Karai
  • Chesi
  • Ajwan
  • Nagwan
  • Korawan
  • Karanja
  • Sarasat
  • Srampur
  • Khajuri
  • Amarpura
  • Bahuara
  • APiplawan
  • Sgopalpur
  • Cdariyapur
  • Rbjaitipur
  • Bela Tarari
  • Chhoti Tengraila
  • Naubatpur

Nearby pincodes

Information only. Data comes from third-party and open sources (Google, NASA, WRI, ESA, WorldPop, OpenStreetMap and others), is shown as received or modelled, and may be incomplete, outdated or inaccurate. It is not professional, legal, financial, property or health advice. Verify independently before making decisions. Full disclaimer →

Year-round

Typical month · PM2.5 2022–2024, climate 2021–2025 averages

  • Worst air: Nov–Jan (PM2.5 ~137 µg/m³, ~2× India's daily limit of 60; WHO's daily guideline is 15)
  • Hottest: Apr–Jun (avg high 41°C)
  • Monsoon: Jun–Sep (772 mm)
  • Muggy months: Aug–Oct
PM2.5 µg/m³17085High °C4419Jan: PM2.5 147 µg/m³ (Very poor)Feb: PM2.5 89 µg/m³ (Moderate)Mar: PM2.5 57 µg/m³ (Satisfactory)Apr: PM2.5 47 µg/m³ (Satisfactory)May: PM2.5 46 µg/m³ (Satisfactory)Jun: PM2.5 40 µg/m³ (Satisfactory)Jul: PM2.5 34 µg/m³ (Satisfactory)Aug: PM2.5 29 µg/m³ (Good)Sep: PM2.5 32 µg/m³ (Satisfactory)Oct: PM2.5 56 µg/m³ (Satisfactory)Nov: PM2.5 107 µg/m³ (Poor)Dec: PM2.5 157 µg/m³ (Very poor)Jan: high 24.1°C, humidity 56%Feb: high 29.1°C, humidity 42%Mar: high 35.5°C, humidity 33%Apr: high 41.0°C, humidity 25%May: high 40.6°C, humidity 38%Jun: high 40.0°C, humidity 49%Jul: high 35.1°C, humidity 74%Aug: high 32.8°C, humidity 82%Sep: high 31.8°C, humidity 85%Oct: high 30.5°C, humidity 79%Nov: high 27.2°C, humidity 69%Dec: high 23.9°C, humidity 67%Jan: 4 mm rainFeb: 11 mm rainMar: 10 mm rainApr: 13 mm rainMay: 72 mm rainJun: 154 mm rainJul: 213 mm rainAug: 245 mm rainSep: 160 mm rainOct: 97 mm rainNov: 1 mm rainDec: 6 mm rainRainJFMAMJJASOND

Jan: PM2.5 147 µg/m³ (Very poor) high 24°C humidity 56% rain 4 mm; Feb: PM2.5 89 µg/m³ (Moderate) high 29°C humidity 42% rain 11 mm; Mar: PM2.5 57 µg/m³ (Satisfactory) high 35°C humidity 33% rain 10 mm; Apr: PM2.5 47 µg/m³ (Satisfactory) high 41°C humidity 25% rain 13 mm; May: PM2.5 46 µg/m³ (Satisfactory) high 41°C humidity 38% rain 72 mm; Jun: PM2.5 40 µg/m³ (Satisfactory) high 40°C humidity 49% rain 154 mm; Jul: PM2.5 34 µg/m³ (Satisfactory) high 35°C humidity 74% rain 213 mm; Aug: PM2.5 29 µg/m³ (Good) high 33°C humidity 82% rain 245 mm; Sep: PM2.5 32 µg/m³ (Satisfactory) high 32°C humidity 85% rain 160 mm; Oct: PM2.5 56 µg/m³ (Satisfactory) high 31°C humidity 79% rain 97 mm; Nov: PM2.5 107 µg/m³ (Poor) high 27°C humidity 69% rain 1 mm; Dec: PM2.5 157 µg/m³ (Very poor) high 24°C humidity 67% rain 6 mm.

Month-by-month figures
MonthPM2.5High °CRH %Rain mm
Jan14724.1564
Feb8929.14211
Mar5735.53310
Apr4741.02513
May4640.63872
Jun4040.049154
Jul3435.174213
Aug2932.882245
Sep3231.885160
Oct5630.57997
Nov10727.2691
Dec15723.9676

Sources: ACAG/WashU V6.GL.03 monthly PM2.5 (CC BY 4.0) · NASA POWER (MERRA-2)

Environment & water risk

Air

weight 24%

22

Year-round PM2.5 averages 69 µg/m³, rising to 137 in Nov–Jan. Today's AQI isn't scored.

Annual PM2.5 (2022–2024 avg)
69.2 µg/m³ · 13.8× WHO guideline
Worst season (Nov–Jan, 2022–2024 avg)
137.1 µg/m³ · 2.3× India's daily limit (60)
Modelled

River & coastal flood

weight 12%

55

Inside a modelled 1-in-100-year flood zone (up to 0.6 m); 0% intermittent surface water within 250 m; local elevation comparison unavailable.

100-year inundation depth
0.62 m
Intermittent water · 250 m
0.0%
Elevation vs surroundings
Unavailable; penalty not assessed
Sources
WRI Aqueduct v2 · EC JRC v1.4
2050 · high emissions · 100-year flood
1.33 m (scenario, not forecast)

Flood model ignores local drains and defences; not observed street waterlogging.

Modelled

Green

weight 8%

100

56% of land within 500 m is green (tree cover 17%).

Green · 500 m (2021 satellite map)
55.9%
Trees · 500 m (2021 satellite map)
16.6%
Measured

Heat

weight 12%

24

169.6 heat-stress days a year on average, 2021–2025; scored relative to India's climate distribution.

Heat-stress days a year
169.6 (hot 57.4, muggy 129.2), 2021–2025 avg
Hottest typical day
46.2°C · average annual maximum
Source
NASA POWER (MERRA-2)
Summer surface temp (satellite, ~1:30 pm)
39.6°C
Compared with 25 km surroundings
1.8°C cooler
Satellite observations
49, 5 of 5 summers
Surface source (information only)
NASA Aqua MYD11A2 v061
Modelled

Good to know

Through the year

  • Worst air: Nov–Jan (PM2.5 ~137 µg/m³, ~2× India's daily limit of 60; WHO's daily guideline is 15)
  • Hottest: Apr–Jun (avg high 41°C)
  • Monsoon: Jun–Sep (772 mm)
  • Muggy months: Aug–Oct

For owners & buyers

  • New building footprint 2016→2023: +20.4% (state median +25.3%)
  • Night brightness 2019→2025: +16.1% (state median +43.0%) · Below the state trend · NASA Black Marble (VNP46A4)
  • Annual PM2.5 (2022–2024 avg): 69.2 µg/m³ · 13.8× WHO guideline
  • Moderate: 2,025 people/km² within 1 km · WorldPop 2026
  • Inside a modelled 1-in-100-year flood zone (up to 0.6 m); 0% intermittent surface water within 250 m; local elevation comparison unavailable.
  • 56% of land within 500 m is green (tree cover 17%).
  • 2050 outlook (high-emissions scenario): up to 1.3 m in a 1-in-100-year flood (today: up to 0.6 m in the model). Scenario, not a forecast.
  • Water stress: High (40–80%) (baseline); projected High (40–80%) by 2050 (business as usual). WRI Aqueduct 4.0; catchment-level.
  • Green-cover trend coming later
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